I have an old XT3000 mower. Every time I try to start it the blades automatically engage. They are not turning at full speed, but they're turning fast enough to blow dirt everywhere. The blades are not engaged. This has been going on for over a year now and I cannot see any reason why this suddenly started happening. The mechanism looks simple enough. Also, I have a battery draining problem, too. Bought a brand new battery, replaced all of the cable connections and I'm still having to jump it off when I want to use it. I bought it used. When it's running it is KING! It's not running much. Any suggestions?